88d6b53ba3
This change updates the unit tests to have more comments so that it is more clear what went wrong if a test fails. Also, some utility code has been changed to make it easier to support new platforms and read/write locks. Also, the reference code has had some refactoring added to make it easier for Widevine to test CDM code. There should be no functionality differences in the reference code. Also, in the main API doc, there was an obsolete paragraph in the description of the threading model. This paragraph has been removed.
78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine Master
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// License Agreement.
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//
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// File - Platform independent interface for a File class
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//
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#ifndef WVCDM_UTIL_FILE_STORE_H_
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#define WVCDM_UTIL_FILE_STORE_H_
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#include <cstdint>
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#include <memory>
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#include <string>
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#include <vector>
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#include "disallow_copy_and_assign.h"
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#include "platform.h"
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#include "util_common.h"
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namespace wvcdm {
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// File class. The implementation is platform dependent.
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class CORE_UTIL_EXPORT File {
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public:
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File() {}
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virtual ~File() {}
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virtual ssize_t Read(char* buffer, size_t bytes) = 0;
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virtual ssize_t Write(const char* buffer, size_t bytes) = 0;
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friend class FileSystem;
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CORE_DISALLOW_COPY_AND_ASSIGN(File);
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};
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class CORE_UTIL_EXPORT FileSystem {
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public:
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FileSystem();
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FileSystem(const std::string& origin, void* extra_data);
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virtual ~FileSystem();
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class Impl;
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// defines as bit flag
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enum OpenFlags {
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kNoFlags = 0,
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kCreate = 1,
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kReadOnly = 2, // defaults to read and write access
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kTruncate = 4
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};
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virtual std::unique_ptr<File> Open(const std::string& file_path, int flags);
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virtual bool Exists(const std::string& file_path);
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virtual bool Remove(const std::string& file_path);
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virtual ssize_t FileSize(const std::string& file_path);
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// Return the filenames stored at dir_path.
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// dir_path will be stripped from the returned names.
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virtual bool List(const std::string& dir_path,
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std::vector<std::string>* names);
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const std::string& origin() const { return origin_; }
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void set_origin(const std::string& origin);
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const std::string& identifier() const { return identifier_; }
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void set_identifier(const std::string& identifier);
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bool IsGlobal() const { return identifier_.empty(); }
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private:
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std::unique_ptr<FileSystem::Impl> impl_;
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std::string origin_;
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std::string identifier_;
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CORE_DISALLOW_COPY_AND_ASSIGN(FileSystem);
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};
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} // namespace wvcdm
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#endif // WVCDM_UTIL_FILE_STORE_H_
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